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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Regionální programování / Regional Programming

Salva, Petr January 2011 (has links)
The subject of the thesis is the analysis of the strategic planning process, including analysis of the current programming documents of the South Bohemian Region and the Free State of Bavaria. The first part of the thesis defines the basic concepts of strategic planning and describes the methods and procedures applied in the creation of programming documents. The second part deals with the analysis of programming documents in chosen regions. Conclusion of this work evaluates the process of creation, negotiation and approval of programming documents and each document is evaluated from the viewpoint of content and formal qualities, including the shortcomings, which occured in described programming documents.
12

Zvýšení efektivity personální práce společnosti Karlova pekárna s.r.o. / Increasing of Effectiveness of Personal Management in Karlova Pekárna Ltd. Company

Berková, Aneta January 2011 (has links)
This diploma thesis provides a detailed analysis of human resources in the Karlova pekárna Ltd. company with the aim of decreasing the employee fluctuation. The analytical part contains information concerning the external and internal company environment and results of a sociological survey conducted among the company employees. The data obtained from the survey serve as a basis for change proposals related to the working environment, appraisal, motivation and career growth area.
13

An Empirical Method of Ascertaining the Null Points from a Dedicated Short-Range Communication (DSRC) Roadside Unit (RSU) at a Highway On/Off-Ramp

Walker, Jonathan Bearnarr 26 September 2018 (has links)
The deployment of dedicated short-range communications (DSRC) roadside units (RSUs) allows a connected or automated vehicle to acquire information from the surrounding environment using vehicle-to-infrastructure (V2I) communication. However, wireless communication using DSRC has shown to exhibit null points, at repeatable distances. The null points are significant and there was unexpected loss in the wireless signal strength along the pathway of the V2I communication. If the wireless connection is poor or non-existent, the V2I safety application will not obtain sufficient data to perform the operation services. In other words, a poor wireless connection between a vehicle and infrastructure (e.g., RSU) could hamper the performance of a safety application. For example, a designer of a V2I safety application may require a minimum rate of data (or packet count) over 1,000 meters to effectively implement a Reduced Speed/Work Zone Warning (RSZW) application. The RSZW safety application is aimed to alert or warn drivers, in a Cooperative Adaptive Cruise Control (CACC) platoon, who are approaching a work zone. Therefore, the packet counts and/or signal strength threshold criterion must be determined by the developer of the V2I safety application. Thus, we selected an arbitrary criterion to develop an empirical method of ascertaining the null points from a DSRC RSU. The research motivation focuses on developing an empirical method of calculating the null points of a DSRC RSU for V2I communication at a highway on/off-ramp. The intent is to improve safety, mobility, and environmental applications since a map of the null points can be plotted against the distance between the DSRC RSU and a vehicle's onboard unit (OBU). The main research question asks: 'What is a more robust empirical method, compared to the horizontal and vertical laws of reflection formula, in determining the null points from a DSRC RSU on a highway on/off ramp?' The research objectives are as follows: 1. Explain where and why null points occur from a DSRC RSU (Chapter 2) 2. Apply the existing horizontal and vertical polarization model and discuss the limitations of the model in a real-world scenario for a DSRC RSU on a highway on/off ramp (Chapter 3 and Appendix A) 3. Introduce an extended horizontal and vertical polarization null point model using empirical data (Chapter 4) 4. Discuss the conclusion, limitations of work, and future research (Chapter 5). The simplest manner to understand where and why null points occur is depicted as two sinusoidal waves: direct and reflective waves (i.e., also known as a two-ray model). The null points for a DSRC RSU occurs because the direct and reflective waves produce a destructive interference (i.e., decrease in signal strength) when they collide. Moreover, the null points can be located using Pythagorean theorem for the direct and reflective waves. Two existing models were leveraged to analyze null points: 1) signal strength loss (i.e., a free space path loss model, or FSPL, in Appendix A) and 2) the existing horizontal and vertical polarization null points from a DSRC RSU. Using empirical data from two different field tests, the existing horizontal and vertical polarization null point model was shown to contain limitations in short distances from the DSRC RSU. Moreover, the existing horizontal and vertical polarization model for null points was extremely challenging to replicate with over 15 DSRC RSU data sets. After calculating the null point for several DSRC RSU heights, the paper noticed a limitation of the existing horizontal and vertical polarization null point model with over 15 DSRC RSU data sets (i.e., the model does not account for null points along the full length of the FSPL model). An extended horizontal and vertical polarization model is proposed that calculates the null point from a DSRC RSU. There are 18 model comparisons of the packet counts and signal strengths at various thresholds as perspective extended horizontal and vertical polarization models. This paper compares the predictive ability of 18 models and measures the fit. Finally, a predication graph is depicted with the neural network's probability profile for packet counts =1 when greater than or equal to 377. Likewise, a python script is provided of the extended horizontal and vertical polarization model in Appendix C. Consequently, the neural network model was applied to 10 different DSRC RSU data sets at 10 unique locations around a circular test track with packet counts ranging from 0 to 11. Neural network models were generated for 10 DSRC RSUs using three thresholds with an objective to compare the predictive ability of each model and measure the fit. Based on 30 models at 10 unique locations, the highest misclassification was 0.1248, while the lowest misclassification was 0.000. There were six RSUs mounted at 3.048 (or 10 feet) from the ground with a misclassification rate that ranged from 0.1248 to 0.0553. Out of 18 models, seven had a misclassification rate greater than 0.110, while the remaining misclassification rates were less than 0.0993. There were four RSUs mounted at 6.096 meters (or 20 feet) from the ground with a misclassification rate that ranged from 0.919 to 0.000. Out of 12 models, four had a misclassification rate greater than 0.0590, while the remaining misclassification rates were less than 0.0412. Finally, there are two major limitations in the research: 1) the most effective key parameter is packet counts, which often require expensive data acquisition equipment to obtain the information and 2) the categorical type (i.e., decision tree, logistic regression, and neural network) will vary based on the packet counts or signal strength threshold that is dictated by the threshold criterion. There are at least two future research areas that correspond to this body of work: 1) there is a need to leverage the extended horizontal and vertical polarization null point model on multiple DSRC RSUs along a highway on/off ramp, and 2) there is a need to apply and validate different electric and magnetic (or propagation) models. / Ph. D. / The deployment of dedicated short-range communications (DSRC) roadside units (RSUs) allows a connected or automated vehicle to acquire information from the surrounding environment using vehicle-to-infrastructure (V2I) communication. However, wireless communication using DSRC has shown to exhibit null points, at repeatable distances. The null points are significant and there was unexpected loss in the wireless signal strength along the pathway of the V2I communication. If the wireless connection is poor or non-existent, the V2I safety application will not obtain sufficient data to perform the operation services. In other words, a poor wireless connection between a vehicle and infrastructure (e.g., RSU) could hamper the performance of a safety application. For example, a designer of a V2I safety application may require a minimum rate of data (or packet count) over 1,000 meters to effectively implement a Reduced Speed/Work Zone Warning (RSZW) application. The RSZW safety application is aimed to alert or warn drivers, in a Cooperative Adaptive Cruise Control (CACC) platoon, who are approaching a work zone. Therefore, the packet counts and/or signal strength threshold criterion must be determined by the developer of the V2I safety application. Thus, we selected an arbitrary criterion to develop an empirical method of ascertaining the null points from a DSRC RSU. The research motivation focuses on developing an empirical method of calculating the null points of a DSRC RSU for V2I communication at a highway on/off-ramp. The intent is to improve safety, mobility, and environmental applications since a map of the null points can be plotted against the distance between the DSRC RSU and a vehicle’s onboard unit (OBU). The main research question asks: “What is a more robust empirical method, compared to the horizontal and vertical laws of reflection formula, in determining the null points from a DSRC RSU on a highway on/off ramp?” The research objectives are as follows: 1. Explain where and why null points occur from a DSRC RSU (Chapter 2) 2. Apply the existing horizontal and vertical polarization model and discuss the limitations of the model in a real-world scenario for a DSRC RSU on a highway on/off ramp (Chapter 3 and Appendix A) 3. Introduce an extended horizontal and vertical polarization null point model using empirical data (Chapter 4) 4. Discuss the conclusion, limitations of work, and future research (Chapter 5). The simplest manner to understand where and why null points occur is depicted as two sinusoidal waves: direct and reflective waves (i.e., also known as a two-ray model). The null points for a DSRC RSU occurs because the direct and reflective waves produce a destructive interference (i.e., decrease in signal strength) when they collide. Moreover, the null points can be located using Pythagorean theorem for the direct and reflective waves. Two existing models were leveraged to analyze null points: 1) signal strength loss (i.e., a free space path loss model, or FSPL, in Appendix A) and 2) the existing horizontal and vertical polarization null points from a DSRC RSU. Using empirical data from two different field tests, the existing horizontal and vertical polarization null point model was shown to contain limitations in short distances from the DSRC RSU. Moreover, the existing horizontal and vertical polarization model for null points was extremely challenging to replicate with over 15 DSRC RSU data sets. After calculating the null point for several DSRC RSU heights, the paper noticed a limitation of the existing horizontal and vertical polarization null point model with over 15 DSRC RSU data sets (i.e., the model does not account for null points along the full length of the FSPL model). An extended horizontal and vertical polarization model is proposed that calculates the null point from a DSRC RSU. There are 18 model comparisons of the packet counts and signal strengths at various thresholds as perspective extended horizontal and vertical polarization models. This paper compares the predictive ability of 18 models and measures the fit. Finally, a predication graph is depicted with the neural network’s probability profile for packet counts =1 when greater than or equal to 377. Likewise, a python script is provided of the extended horizontal and vertical polarization model in Appendix C. Consequently, the neural network model was applied to 10 different DSRC RSU data sets at 10 unique locations around a circular test track with packet counts ranging from 0 to 11. Neural network models were generated for 10 DSRC RSUs using three thresholds with an objective to compare the predictive ability of each model and measure the fit. Based on 30 models at 10 unique locations, the highest misclassification was 0.1248, while the lowest misclassification was 0.000. There were six RSUs mounted at 3.048 (or 10 feet) from the ground with a misclassification rate that ranged from 0.1248 to 0.0553. Out of 18 models, seven had a misclassification rate greater than 0.110, while the remaining misclassification rates were less than 0.0993. There were four RSUs mounted at 6.096 meters (or 20 feet) from the ground with a misclassification rate that ranged from 0.919 to 0.000. Out of 12 models, four had a misclassification rate greater than 0.0590, while the remaining misclassification rates were less than 0.0412. Finally, there are two major limitations in the research: 1) the most effective key parameter is packet counts, which often require expensive data acquisition equipment to obtain the information and 2) the categorical type (i.e., decision tree, logistic regression, and neural network) will vary based on the packet counts or signal strength threshold that is dictated by the threshold criterion. There are at least two future research areas that correspond to this body of work: 1) there is a need to leverage the extended horizontal and vertical polarization null point model on multiple DSRC RSUs along a highway on/off ramp, and 2) there is a need to apply and validate different electric and magnetic (or propagation) models.
14

Komunitní přístupy k rozvoji městské části Praha 13 / Community attitudes to growth of city part Prague 13

Prochásková, Andrea January 2017 (has links)
The diploma thesis is focused on community attitudes to growth of city part Prague 13. The aim is to evaluate using of planning designs witch lay on community and participative attitudes. Theoretical part of thesis describes community planning with its roles, principals, tools and also describes evaluation of land planning, strategy planning and planning of social services. Theoretical part is focused on process and plan of participation with its methods and risks. Practical part describes characteristic of Prague 13, community attitudes to strategy progress of land, land planning, planning of social services and evaluation of the local Agenda 21. One part of the thesis compares city part Prague 13 with city part Prague 9 in evaluating of community attitudes and methods of participation. The result of comparison is the more extensive use of community attitudes and methods of participation in city part Prague 13 compared city part Prague 9. The diploma thesis brings a complex view and evaluation of community attitudes and participation between citizens and city part Prague 13. Closing part brings a recommendation for increasing participation of citizens in part of planning.
15

[en] CONSTRUCTION STRATEGIES OF THE CLOCK DRAWING TEST: QUALITATIVE ANALYSIS AND CLINICAL VALIDITY WITH COGNITIVE IMPAIRMED OLDER ADULTS / [pt] ESTRATÉGIAS DE CONSTRUÇÃO DO TESTE DO DESENHO DO RELÓGIO: ANÁLISE QUALITATIVA E VALIDADE CLÍNICA EM IDOSOS COM COMPROMETIMENTO COGNITIVO

BARBARA SPENCIERE DE OLIVEIRA CAMPOS 25 June 2020 (has links)
[pt] Além da utilização como teste de rastreio, tem-se utilizado o Teste do Desenho do Relógio (TDR) também na avaliação de funcionamento executivo em idosos. Em dissertação de mestrado, construiu-se e validou-se um método de pontuação que classificou as estratégias de construção do TDR. A presente tese tem o objetivo de investigar as estratégias de construção do TDR em idosos com comprometimento cognitivo. 86 idosos (28 controle, 45 com transtorno neurocognitivo leve e 13 com transtorno neurocognitivo maior) participaram dos dois estudos que compuseram a tese. O primeiro analisou as estratégias de construção do TDR e o perfil neuropsicológico dos idosos e o segundo verificou a validade clínica do sistema. Os resultados apresentaram que as subcategorias associadas a melhor funcionamento executivo diminuem ocorrência à medida que o comprometimento cognitivo se acentua e as subcategorias associadas a pior funcionamento executivo aumentam frequência. Verificou-se também que a Estratégia de Sequência Geral Atípica evidenciou validade clínica para diferenciar idosos com transtorno neurocognitivo maior dos demais grupos. Conclui-se que a análise qualitativa das Estratégias de Construção do TDR tem utilidade clínica como medida de funcionamento executivo. / [en] Besides being used as a screening test, the Clock Drawing Test (CDT) has also been used to assess executive functioning in the elderly. In previous study, a scoring method that classified the Construction Strategies of the CDT was constructed and validated. This tesis aims to investigate construction strategies of CDT in elderly with cognitive impairment. 86 elderly (28 controls, 45 with mild neurocognitive disorder and 13 with major neurocognitive disorder) were the participants of the thesis. It was subdivided in two studies. The first one analyzed older adult s Construction Strategies of the CDT and neuropsychological profiles. The second one verified clinical validity of the system. Results showed that the subcategories associated with better executive functioning decrease occurrence as cognitive impairment increases while the subcategories associated with worse executive functioning increase frequency. Atypical General Sequence Strategy also showed clinical validity to differentiate older adults with major neurocognitive disorder from other groups. As conclusion, it is verified that qualitative analysis of the Construction Strategies of the CDT has clinical utility as a measure of executive functioning.

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